Ratchet-drill.



ONTTED STATES PATENT Genion.

ASSIGNORS OF ONE-HALF TO VIRGINIA.`

CHARLES FRIEDLANDER, oENoRFoLK,

RATCHET-DRILL.

SPEGIFCATION forming part of Letters Patent No. 714,437, dated November 25, 1902A application filed August 30,1901. Serial No. 73,783. (No model.)

To all whom t may concern:

Be it known that we, HERMAN BENMOSCHE and Mosns BnNMosoHE, cir izens of the United States of America, residing at Norfolk, in the county of Norfolk and `State of Virginia, have invented certain new andusefulmprovements in Ratchet-Drills, of which the following is a specification.

Our invention relates to ratchet-drills, and has for its object to produce such a device that will rotate a head-stock, clutch, or other tool-holderin 'which a drill, screwdriver, bolt, nut, or other articles requiring a rotary motion may be placed and motion imparted thereto bythe reciprocation of the handle. This rotary motion is imparted to the headstock, clutch, or other tool-holder by each stroke of the handle, thus' causing the tool held therein to revolve in one continuous path. v

Another object of our invention is to provide a ratchet-drill with an automatic feed which will hold the bit, screwdriver, or other tool in Contact with the article upon which the tool is working and will cause the same to bite or drive an equal amount at each `stroke of the handle.

For the attainment` of these objects and for such other purposes as may hereinafter appear our invention consists, in brief, in certain details of construction, arrangement, and

1' combination of parts, the novel features of which will `befully described, and specifically pointed out in the claims.

While we have shown in the accompanying drawings vand described in tlie 4speciiication certain component and cooperative parts which we deem sufficiently-improved and op` erative to carry outthe fundamental princi-` In the drawings forming apart of this speci-V cation, Figure 1 is a top plan'view. Fig. 2 is a side elevation showing the arrangement of the automatic feed. Fig. 3 is a similar view illustrating the .arrangement and con- .tional view of the automatic feed-nut and shaft upon which it travels.

Referring by numerals to Athe; drawings, 1 represents the handle, having mounted therein a shaft 2, carrying oppositely-disposed cogs 3, which mesh with semicircular cog-faces 4, arranged upon a slotted bloclc. The block is pivoted to the end of the handle byashaft 6, one end of which projectsout at right angles to the block and is provided with a cog 7 and a ratchet S, which are keyed or formed together and loosely mounted upon. the said shaft. This shaft is further provided with a sliding stop 9, the object of which will be hereinafter explained.

The function of-the cogs 3, which mesh with the semicircular cog-faces 4, is to lend rigidityY to the implement and at the same time allow the handle to work freely ou its pivot-shaft 6 in the block 5.

VJourualed in the free end of the slotted block is a hollow shaft 10, one end of which isprovided with a head 11 for the reception of a tool or other article and the other end projects out parallel with the shaft 6. The shaft is externally screwthreaded, as shown at 12, and is adapted to receive an elongated feed-nut 13, having a central rod 13@ adapted to engage the hollow shaft, and

ahead provided with two points 14, adapted to engage the article upon which the drill is braced,'and thereby prevent the nut from turning. This nutis further provided with a beveled slot 1,5, adapted to receive the tongue 16, upon the face of the sliding stop 9, thereby holding the shaft 6in a rigid position and preventing any movement of the block 5, in which said shaft is secured. It will be readily understood that if such a construction is desired the beveled slot 15 and the tongue 16 may be dispensed with and the elongated feed-nut formed with flat sides and the stop provided with a floop adapted toiit snugly over the nut, thereby accomplishing the same result, or any other desired mau- `ner of locking the feed-nutfand. shaft 6 together may be employed.v

`ratchet 17 The shaft 10 is rotated by a which is keyed thereupon between the slot- 5o struction of the opposite side. Fig. 4. is sected ends of the block and is controlled by the roo handle.

spring-actuated pawl 18, mounted upon the mounted thereupon, which meshes with and is adapted to be driven by the cog 7, loosely mounted on the shaft 6 and keyed to or formed With a ratchet 8, which is controlled by the spring-actuated pawl 20, mounted upon the handle.

It will be readily seen that when the drill is placed in position the block 5 is held rigid by the two points 14E on the feed-nut, which bite into the article upon which the drill is braced, the feed-nut being locked to the shaft 6. The block 5 being held in a rigid position, the shaft 10 is made to revolve by the ratchetwheel 17, which is controlled by the pawl 18 on the forward motion of the handle and is caused to continue in its revolutions when the handle is moved backward by the pawl 20, which controls the ratchet 8, thereby controlling the cog 7, which is keyed thereto, the cog 7 meshing with and driving the cog 19, keyed upon the rotary shaft.

What we claim as new, and desire to secure by Letters Patent, is-- 1. In a ratchet-drill, a slotted block, a rotary shaft journaled in said block having a head upon one end and a feed-nut upon the other, two' points upon the free end of the feed-nut, a stationary shaft mounted in said block, a handle pivoted to said stationary shaft, cogs upon the handle engaging semicircular cogs upon the block, means for locking the stationaryshaftand feed-nut together, a ratchet keyed upon the rotary shaft, a pawl mounted upon the handle engaging the ratchet upon the rotary shaft, a cog keyed upon the rotary shaft, a cog loosely mounted upon the stationary shaft, meshing with the cog upon the rotary shaft, a ratchet formed upon the cog mounted on the stationary shaft, a pawl mounted upon the handle engaging the ratchet upon the stationary shaft, substantially as shown and described.

It is further rotated by a cog 19,

shaft in the slotted block, a springactuated pawl upon the handle adapted to engage and to control the ratchet upon the rotary shaft, a cog keyed to the rotary shaft, meshing with the cog on the stationary shaft, a ratchet formed upon the cog upon the stationary shaft, and a pawl upon the handle for controlling the same, substantially as shown and described.

3. In a ratchet-drill, a handle pivoted upon a stationary shaft in a slotted block, semicircular cog-faces upon the end of the slotted block, engaging cogs keyed upon a shaft in the handle, a revolving shaft mounted in the free end of the slotted block, the said revolving shaft having a head upon one end, and an elongated feed nut upon the other, a ratchet mounted upon the said revolving shaft in the slotted block, a pawl upon the handle for-controlling the said ratchet, a cog keyed to the revolving shaft, said cog meshing with the cog loosely mounted upon the stationary shaft, a ratchet keyed to or formed as a part of the cog upon the stationary shaft, and a pawl upon the handle adapted to engage the ratchet and thereby controlling the same, and means for locking the stationary shaft and feed-nut together, substantially as shown and described.

HERMAN BENMOSCHE. MOSES BENMOSCHE. Witnesses:

R. A. AGELAsro, A. B. SELDNER. 

